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C50990 Wrought BRONZES Copper-Tin-Phosporus Alloys (Phosphor Bronzes) true false https://api.copper.org/alloys.xhtml/C50990
Chemical Composition
Elements
Cu(1) Pb Sn P Ni S
(1) Cu + Sum of Named Elements 99.5% min.
Min (%) 3.0 0.03 0.6 0.10
Max (%) Rem 0.09 5.0 0.35 1.2 0.50
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.2% Offset
(ksi)		 Elongation
(%)
* Measured at room temperature, 68°F (20°C).
Wire 54 Min
87 Typ
 80 Typ
 10 Typ
Physical Properties
Melting Point - Liquidus°F 1926
Melting Point - Solidus°F 1675
Densitylb/cu in. at 68°F 0.319
Specific Gravity 8.84
Electrical Conductivity% IACS at 68°F 19.1
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 47.4
Poisson's Ratioksi 0.34
Fabrication Properties
Technique Suitability
Soldering Excellent
Brazing Good
Machinability Rating 70
Common Fabrication Processes

No fabrication process properties for this alloy

Typical uses
Product Category Product Reason Category Reason
Electrical Electrical Connectors Electrical Conductivity
Conductors, Electrical and Thermal, High Strength
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No Corrosion Properties Available.